[jira] [Commented] (PIVOT-1012) Many places throw IllegalArgumentException during parameter validation, but some are inconsistent

["Roger Whitcomb (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIVOT-1012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16284130#comment-16284130 ] 

Roger Whitcomb commented on PIVOT-1012:
---------------------------------------

Changes to Separator and skin classes (plus changes for PIVOT-999, PIVOT-1011, and PIVOT-1014):
Sending wtk\src\org\apache\pivot\wtk\Separator.java
Sending wtk\src\org\apache\pivot\wtk\SeparatorListener.java
Sending wtk\src\org\apache\pivot\wtk\skin\SeparatorSkin.java
Sending wtk-terra\src\org\apache\pivot\wtk\skin\terra\TerraSeparatorSkin.java
Sending wtk-terra\src\org\apache\pivot\wtk\skin\terra\terra_theme_defaults.json
Transmitting file data .....done
Committing transaction...
Committed revision 1817553.

> Many places throw IllegalArgumentException during parameter validation, but some are inconsistent
> -------------------------------------------------------------------------------------------------
>
>                 Key: PIVOT-1012
>                 URL: https://issues.apache.org/jira/browse/PIVOT-1012
>             Project: Pivot
>          Issue Type: Improvement
>          Components: core, wtk, wtk-terra
>         Environment: All
>            Reporter: Roger Whitcomb
>            Assignee: Roger Whitcomb
>            Priority: Minor
>             Fix For: 2.1
>
>
> Primarily the code looks like this currently:
> {code:java}
> if (param == null)
> throw new IllegalArgumentException(param + " is null");
> {code}
> But not all places have the message in the exception, and not all places check the parameters as they should, and not all places have the same message.
> So, regularize this checking everywhere by making common "core" methods to do this null check (or other checks, such as <= 0, etc.) so that the checking and messaging are common.  This also simplifies the code, and with JIT compiling shouldn't affect runtime speed either, as this common method should get compiled and/or inlined as appropriate.



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